:root{
  color-scheme:dark;
  --ink:#f4f5f2;
  --muted:rgba(235,239,235,.62);
  --soft:rgba(235,239,235,.44);
  --panel-bg:rgba(8,19,16,.28);
  --panel-border:rgba(235,242,237,.32);
  --field-bg:rgba(8,18,17,.26);
  --field-border:rgba(232,240,235,.28);
  --control-bg:rgba(7,13,18,.30);
  --control-border:rgba(237,242,241,.22);
  --button-a:#88a864;
  --button-b:#174f42;
  --button-text:#f9fbf8;
  --focus:rgba(205,224,208,.12);
  --danger:#ff9f94;
  font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html,body{width:100%;height:100%;margin:0;background:#08100e}
body{overflow:hidden;color:var(--ink);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
button,input{font:inherit}
button{color:inherit}
.login-scene{position:relative;width:100vw;height:100vh;min-width:980px;min-height:620px;overflow:hidden;background:#04070d;isolation:isolate}
.scene-video{position:absolute;z-index:0;inset:0;width:100%;height:100%;object-fit:cover;object-position:center center;background:#04070d;filter:none;pointer-events:none;user-select:none}
.login-scene::before{content:"";position:absolute;z-index:1;inset:0;background:transparent;pointer-events:none}
.scene-layer{position:absolute;z-index:0;inset:0;background:none!important;opacity:0!important;pointer-events:none}
.native-motion{display:none!important;position:absolute;z-index:1;inset:0;pointer-events:none;overflow:hidden;opacity:0;transition:opacity .6s ease}
 .native-clouds{background:radial-gradient(ellipse at 18% 20%,rgba(207,224,255,.06),transparent 26%),radial-gradient(ellipse at 70% 25%,rgba(181,207,244,.05),transparent 31%);opacity:0;mix-blend-mode:screen;-webkit-mask-image:linear-gradient(to bottom,#000 0%,#000 45%,rgba(0,0,0,.35) 53%,transparent 62%);mask-image:linear-gradient(to bottom,#000 0%,#000 45%,rgba(0,0,0,.35) 53%,transparent 62%);animation:cloud-drift 34s ease-in-out infinite alternate}
.native-moon{display:none!important}
.native-moon::before{content:"";position:absolute;inset:34%;border-radius:50%;background:radial-gradient(circle at 35% 34%,rgba(255,255,242,.16),transparent 62%);mix-blend-mode:screen;animation:moon-surface 13s ease-in-out infinite alternate}
.native-light{background:radial-gradient(ellipse at 33% 32%,rgba(255,236,175,.18),transparent 13%,transparent 32%),radial-gradient(ellipse at 61% 44%,rgba(201,226,255,.09),transparent 24%);mix-blend-mode:screen;filter:blur(18px);opacity:.34;animation:light-drift 24s ease-in-out infinite alternate}
.native-trees{background:linear-gradient(100deg,transparent 0 47%,rgba(145,172,181,.045) 53%,transparent 63%),linear-gradient(76deg,transparent 0 62%,rgba(115,156,143,.035) 68%,transparent 76%);opacity:0;mix-blend-mode:screen;filter:blur(.45px);animation:tree-sway 11s ease-in-out infinite alternate}
.native-water{background:linear-gradient(180deg,transparent 56%,rgba(15,31,52,.055) 70%,rgba(13,28,47,.09) 100%)}
.native-water::before{content:"";position:absolute;inset:56% 0 0;background:repeating-linear-gradient(177deg,transparent 0 10px,rgba(225,239,255,.035) 11px,transparent 13px 22px),linear-gradient(180deg,rgba(170,205,235,.04),transparent 60%);opacity:.82;mix-blend-mode:screen;filter:url(#waterDisplacement);-webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.28),#000 18%,transparent 96%);mask-image:linear-gradient(to bottom,rgba(0,0,0,.28),#000 18%,transparent 96%);animation:water-drift 20s ease-in-out infinite alternate}
.native-water::after{content:"";position:absolute;inset:56% 0 0;background:linear-gradient(180deg,rgba(231,241,255,.035),transparent 28%);opacity:.45;mix-blend-mode:screen;filter:blur(7px);-webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.35),#000 22%,transparent 93%);mask-image:linear-gradient(to bottom,rgba(0,0,0,.35),#000 22%,transparent 93%);animation:water-breathe 12s ease-in-out infinite alternate}
.native-forest{background:radial-gradient(ellipse at 22% 20%,rgba(255,225,163,.14),transparent 28%),radial-gradient(ellipse at 72% 32%,rgba(182,210,153,.09),transparent 34%);mix-blend-mode:screen;filter:blur(.5px);opacity:0;animation:forest-breeze 18s ease-in-out infinite alternate}
.native-forest::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 27% 18%,rgba(244,221,167,.16),transparent 25%),radial-gradient(ellipse at 66% 31%,rgba(255,213,117,.10),transparent 24%);mix-blend-mode:screen;filter:blur(12px);opacity:.7;animation:light-drift 22s ease-in-out infinite alternate}
@keyframes cloud-drift{0%{transform:translate3d(-.55%,0,0) scale(1.003);opacity:.08}50%{transform:translate3d(.4%,.16%,0) scale(1.008);opacity:.16}100%{transform:translate3d(.78%,-.1%,0) scale(1.003);opacity:.1}}
@keyframes moon-drift{0%{transform:translate3d(-4px,1px,0) scale(.985);opacity:.28}50%{transform:translate3d(3px,-1px,0) scale(1.025);opacity:.55}100%{transform:translate3d(7px,1px,0) scale(1);opacity:.34}}
@keyframes moon-surface{0%{transform:translate3d(-1px,0,0) rotate(-1deg);opacity:.28}100%{transform:translate3d(1px,.5px,0) rotate(1deg);opacity:.52}}
@keyframes light-drift{0%{transform:translate3d(-2%,-1%,0) scale(.96);opacity:.18}50%{transform:translate3d(1%,1%,0) scale(1.04);opacity:.42}100%{transform:translate3d(3%,-.5%,0) scale(1);opacity:.25}}
@keyframes tree-sway{0%{transform:translate3d(-.42%,0,0) skewX(-.16deg);opacity:.07}50%{transform:translate3d(.34%,-.16%,0) skewX(.22deg);opacity:.18}100%{transform:translate3d(.62%,.12%,0) skewX(-.1deg);opacity:.1}}
@keyframes water-drift{0%{transform:translate3d(-.55%,0,0) scale(1.004);opacity:.18}50%{transform:translate3d(.4%,.28%,0) scale(1.01);opacity:.29}100%{transform:translate3d(.68%,-.12%,0) scale(1.004);opacity:.2}}
@keyframes water-breathe{0%{opacity:.24;transform:translate3d(-.4%,0,0)}50%{opacity:.48;transform:translate3d(.35%,.2%,0)}100%{opacity:.3;transform:translate3d(-.15%,0,0)}}
@keyframes forest-breeze{0%{transform:translate3d(-.35%,-.12%,0) scale(1.003);opacity:.04}50%{transform:translate3d(.28%,.08%,0) scale(1.008);opacity:.13}100%{transform:translate3d(.5%,-.1%,0) scale(1.004);opacity:.06}}
.login-scene{
  --panel-bg:rgba(7,14,25,.14);
  --panel-border:rgba(231,239,249,.34);
  --field-bg:rgba(6,13,24,.34);
  --field-border:rgba(225,235,249,.32);
  --control-bg:rgba(5,12,24,.5);
  --control-border:rgba(232,239,249,.22);
  --button-a:#d8dce8;
  --button-b:#6e7da5;
  --button-text:#09101c;
  --focus:rgba(164,190,255,.16);
}
.top-controls{position:absolute;z-index:5;top:32px;right:46px;display:flex;align-items:center;gap:12px}
.control-pill{height:42px;display:inline-flex;align-items:center;gap:9px;padding:0 14px;border:1px solid var(--control-border);border-radius:22px;background:var(--control-bg);backdrop-filter:blur(16px) saturate(108%);-webkit-backdrop-filter:blur(16px) saturate(108%);box-shadow:0 8px 24px rgba(0,0,0,.08);cursor:pointer;transition:background .18s,border-color .18s,transform .18s}
.control-pill:hover{border-color:rgba(255,255,255,.42);transform:translateY(-1px)}
.control-pill svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.control-sep{width:1px;height:24px;background:rgba(255,255,255,.22)}
.lang-label{font-size:13px;white-space:nowrap}
.theme-glyph{font-size:16px;line-height:1;width:18px;text-align:center}
.theme-label{font-size:12px;color:var(--muted)}
.login-card{position:absolute;z-index:4;right:7.2vw;top:20vh;width:344px;padding:26px 28px 24px;border:1px solid var(--panel-border);border-radius:12px;background:var(--panel-bg);box-shadow:0 14px 34px rgba(0,0,0,.14),inset 0 1px rgba(255,255,255,.11);backdrop-filter:blur(8px) saturate(108%);-webkit-backdrop-filter:blur(8px) saturate(108%);transition:background .45s,border-color .45s,box-shadow .45s}
.login-card h1{margin:0;font-family:"Songti SC","STSong","Noto Serif CJK SC",Georgia,serif;font-size:28px;line-height:1.22;font-weight:500;letter-spacing:.035em;color:#f5f6f3}
.login-card .subtitle{margin:8px 0 21px;color:var(--muted);font-size:12px;letter-spacing:.02em}
.field-label{display:block;margin:0 0 8px;color:#f1f3ef;font-size:12px;font-weight:600}
.password-label{margin-top:17px}
.field{height:45px;display:flex;align-items:center;padding:0 12px;border:1px solid var(--field-border);border-radius:9px;background:var(--field-bg);transition:border-color .16s,box-shadow .16s,background .16s}
.field:focus-within{border-color:rgba(245,248,246,.55);box-shadow:0 0 0 4px var(--focus)}
.shield{width:22px;height:22px;display:grid;place-items:center;flex:0 0 auto;margin-right:11px;color:rgba(241,244,242,.74)}
.shield svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round}
.field input{width:100%;min-width:0;border:0;outline:0;background:transparent;color:#f6f7f5;font-size:15px;font-weight:500;letter-spacing:.045em}
.field input::placeholder{color:rgba(236,240,237,.46);font-weight:400;letter-spacing:.01em}
.login-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:12px 1px 0;color:var(--muted);font-size:10px;line-height:1.5}
.login-meta .local{display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
.local-dot{width:7px;height:7px;border-radius:50%;background:#64c68a;box-shadow:0 0 0 3px rgba(100,198,138,.08)}
.submit{width:100%;height:46px;margin-top:19px;border:1px solid rgba(255,255,255,.20);border-radius:9px;background:linear-gradient(105deg,var(--button-a),var(--button-b));color:var(--button-text);cursor:pointer;font-family:"Songti SC","STSong",Georgia,serif;font-size:14px;font-weight:600;letter-spacing:.16em;box-shadow:0 8px 20px rgba(0,0,0,.12);transition:transform .16s,filter .16s,box-shadow .16s}
.submit:hover{filter:brightness(1.06);box-shadow:0 15px 36px rgba(0,0,0,.20)}
.submit:active{transform:translateY(1px)}
.submit:disabled{opacity:.55;cursor:wait}
.login-foot{margin:14px 0 0;color:rgba(235,239,236,.48);font-size:10px;line-height:1.6;text-align:center}
.err{min-height:18px;margin-top:10px;color:var(--danger);font-size:11px;text-align:center}
@media(max-width:1180px){.login-card{right:4vw;width:344px;padding:26px 28px 24px}.login-card h1{font-size:28px}.top-controls{right:24px;top:22px}}
@media(max-width:900px){body{overflow:auto}.login-scene{min-width:0;min-height:100vh;height:auto;padding:138px 20px 42px;display:flex;align-items:flex-end;justify-content:center}.scene-layer{position:fixed;background-position:left center}.native-motion{display:none}.top-controls{position:fixed;top:18px;right:18px}.login-card{position:relative;right:auto;top:auto;width:min(430px,100%);margin-top:38vh}}
@media(prefers-reduced-motion:reduce){.native-motion,.native-water::before,.native-water::after{animation:none!important}*{transition:none!important}}